Laravel组按月求和总计

Question

数据结构

[
{
  "id": "1",
  "date": "2019-06-22",
  "total": "1200" // THIS TOTAL IS A MUTATOR
},
{
  "id": "2",
  "date": "2019-06-24",
  "total": "2200" // THIS TOTAL IS A MUTATOR
},
{
  "id": "3",
  "date": "2019-07-20",
  "total": "2300" // THIS TOTAL IS A MUTATOR
},
]

我正在尝试做的是：

我想将这些数据按MONTH分组并返回总和

预期结果：

2019-06总数为1200 AND 2019-07总数为4500

我试过的

$customer_branch = ExportInvoice::where('customer_branch_id', $customer_branch_id)
            -> approved()
            -> whereYear('date', $year)
            -> orderBy('date', 'ASC')
            -> get();

而且我尝试循环抛出$customer_branch并将数据设置为数组，但是没有得到预期的结果

Answer 1

1.打开config/database.php

2.在mysql连接设置里面找到strict密钥

3.将值设置为false

4.然后运行php artisan config:cache

现在尝试此查询

ExportInvoice::select('id',\DB::raw('SUM(total) as total,DATE_FORMAT(date,"%Y-%m") as monthDate'))
->where('customer_branch_id', $customer_branch_id)
->approved()
->groupBy(\DB::raw('DATE_FORMAT(date,"%Y-%m")'))
->orderBy('date')
->get();

Answer 2

groupBy中的Simble DB：raw应该可以解决问题。

$customer_branch = ExportInvoice::where('customer_branch_id', $customer_branch_id)
   ->approved()
   ->whereYear('date', $year)
   ->groupBy(DB::raw(DATE_FORMAT(date,'%Y-%m'))
   ->get();